Tamper-evident closure for liquid containers and bulk containers

ABSTRACT

A guarantee closure having a closure body with a guarantee foil and a pour-out spout as well as a closure cap fitting onto the closure body. The pour-out spout is arranged on the closure body such that it may be pivoted up. The guarantee foil, by pivoting-up the pour-out spout into the pour-out position, is cut open and thus frees the passage to the pour-out spout. The closure body comprises a relief for receiving the guarantee foil and forms above the relief, by two shoulders arranged over one another and distanced from one another, a free space for receiving the lying pour-out spout. This is enclosed and held by a film-hinge material bridge which in the lying condition connects the two shoulders with a surface which seen from the outside is concave and on the upper side of the lying pour-out spout runs together to a point which defines the pivoting axis of the pour-out spout. On pivoting up the pour-out spout the film-hinge material bridge snaps into a permanent shape which is convex when viewed from the outside and thus holds the pour-out spout in the closure position.

BACKGROUND OF THE INVENTION

1. Field of the Invention

This invention relates to a guarantee closure for fluid containers orfree-flowing material containers for packaging things like salt, sugarand similar free-flowing or pourable substances. With a guaranteeclosure, on opening for the first time, a guarantee foil or thepackaging skin itself must be cut open.

2. Discussion of Related Art

Many closures of foodstuff containers and bottles as also closures forcontainers for cleaning agents or any types of liquids such aslubrication oils, chemicals and likewise are designed as guaranteeclosures. If the closure lid is removed the contents remainshermetically sealed until a guarantee seal formed as a sealing foil isseparately pierced or removed.

As an example of a guarantee closure, there is a known plastic closurewith a closure body and associated lid, as is used for ketchup bottles.The closure body has a pour-out spout directed upwards and on its lowerside there is an aluminium foil which is applied or adhered on and actsas a guarantee seal or guarantee closure. If a new bottle is opened forthe first time then in some cases first a guarantee strip is removed,and the closure lid is flipped up. The closure lid is designed as a capand when the cap is snapped shut it encloses a hollow space on theclosure body. The closure body is screwed onto the bottle thread.Arranged on the closure body is a pour-out spout which stands upright onthe closure body shoulder and which is set free on flipping up theclosure cap. This pour-out spout is closed on the lower side by aguarantee closure in the form of an aluminium foil applied below theclosure body. Thus, before one may pour out ketchup for the first time,the aluminium foil at the lower end of the pour-out spout must bepierced. Conventionally this is done with a sharp object, for examplewith the tip of a knife. With this there is a disadvantage that the foilis not cleanly cut away along the inner edge of the spout, but rather isirregularly torn to a greater or lesser extent. Individual brows of thealuminium foil may subsequently still project into the pour-out spout oreven released from the aluminium foil may come out with the contents onpouring out. For opening such a closure or its guarantee foil for thefirst time an additional tool, such as a knife or a needle must be used.Furthermore this opening of the guarantee foil is not effectedsystematically and in a technically clean manner which would ensure acomplete release of the flow cross section of the pour-out spout.

The fluid container does not need to be a bottle but can also be acardboard carton as used for all types of fruit juices, lemonades, freshwater, tea and milk products. Cardboard cartons are also used forpackaging free-flowing material such as sugar, salt and likewise. Withthese cardboard cartons there is always a problem of how the cardboardcarton is opened where the closure is seated. With these cardboardcartons specifically it is the cardboard itself which assumes the roleof the guarantee foil and the cardboard carton therefore after openingor on opening the closure must by pierced or cut open, which until nowhad to be effected by a separate working step and often is onlyaccomplished with the help of tools.

SUMMARY OF THE INVENTION

It is one object of this invention to provide a guarantee closure forliquid and free-flowing containers which overcomes the above mentioneddisadvantages and which on opening the closure for the first time theguarantee foil is cleanly opened and at the same time it is ensured thata cross section of the pour-out spout is set free and also remains heldfree.

This object is achieved by a guarantee closure for a liquid andfree-flowing material container, having a closure body with a pour-outspout arranged lying therein in the initial position but which may bepivoted up out of this position and which with respect to the closurebody is sealingly enclosed by a film-hinge material bridge. When onpivoting up the film-hinge bridge, the pour-out spout springs from aconcave into a convex shape and vice-versa and thus retains the pour-outspout in the end positions of its pivoting range, as well as with anassociated guarantee foil which in the lying position of the pour-outneck extends below and along this, and the pivoting axis on the pour-outneck lies at such a location that its rear section on pivoting Up thepour-out neck pivots downwards. The rear end of the pour-out neck tapersinto a tip which at the beginning of the pivoting-up movement of thepour-out neck tears open the guarantee foil extending below the pour-outneck. The pour-out neck on the side which faces the guarantee foil formsa wedge-shaped cut-edge which on pivoting up the pour-out neck cuts openthe guarantee foil.

BRIEF DESCRIPTION OF THE DRAWINGS

Different embodiments of this guarantee closure are shown in thedrawings in various positions and are explained in detail in thespecification, wherein the drawings show:

FIG. 1 is a longitudinal sectional view of a guarantee closure, placedonto a bottle, in a closed position before a first use of the bottle;

FIG. 2 is a front view of the closed guarantee closure, from the left asshown in FIG. 1;

FIG. 3 is a longitudinal sectional view of the guarantee closure with aflipped-up closure cap, with the pour-out spout on pivoting tip, andsimultaneous cutting open the guarantee foil;

FIG. 4 is a longitudinal sectional view of the guarantee closure with aflipped-up closure cap, with the pour-out spout pivoted completely intothe pour-out position after cutting-open the guarantee foil;

FIG. 5 is a top view of the guarantee closure with a flipped-up closurecap, with the pour-out spout in the pour-out position and a cut-openguarantee foil;

FIG. 6 is a longitudinal sectional view of the guarantee closure with aclosure cap which is flipped shut again, with the pour-out spoutremaining in the pour-out position after the use for the first time;

FIG. 7 is a diagrammatic view of the guarantee closure for a fluid andfree-flowing material container in the form of a cuboid cardboardcarton, left for pouring out the contents via a narrow side, and on theright is shown for pouring out the contents via a corner of the cuboidcontainer;

FIG. 8 is a longitudinal sectional side view of the guarantee closureaccording to FIG. 7 on the left, before pivoting up the pour-out spout;and

FIG. 9 is a longitudinal sectional side view of the guarantee closureaccording to FIG. 8, after pivoting up the pour-out spout into thepour-out position and after an effected piercing and cutting open of thecardboard carton upper side acting as a guarantee foil.

DESCRIPTION OF PREFERRED EMBODIMENTS

FIG. 1 shows the guarantee closure in a longitudinal section along theaxis of the bottle 20 which is only indicated. The guarantee closure hasa closure body 1, a pour-out spout 2 and a closure cap 3 fitting theclosure body 1. The closure cap 3 is connected to the closure body 1 asone piece so that it may be flipped up on it. It is also possible tomanufacture the closure cap 3 as a separate piece, either equipped withsnap-closures so that it may be stuck onto the Closure body or equippedwith an inner thread and thus may be screwed onto a fitting outer threadon the closure body 1. The closure body 1 on the lower side forms arelief 11 extending around on which there is applied or adhered aguarantee foil 4. The guarantee foil 4 ensures that the closurehermetically seals the container or the bottle 20 and simultaneouslyensures that the first user that opens the closure is also the firstuser to remove fluid out of the container or the bottle 20. In theexample shown here the closure body 1 with an inner thread 15 is screwedonto the outer thread 16 on the bottle neck 17 of the bottle 20. Oneaspect of this guarantee closure is that the pour-out spout 2 isarranged on the closure body 1 such that it may be pivoted up, whereinthe guarantee foil 4 by pivoting up the pour-out spout 2 in its pour-outposition by itself is automatically cut open. For this purpose, thepour-out spout 2 is held lying between two shoulders 12, 13 which areformed on the closure body 1 and arranged over one another at a distanceto one another. To be more exact the pour-out spout 2 is held by afilm-hinge material bridge 5 which sealingly encloses the whole pour-outspout 2 and connects the two shoulders 12, 13 on the closure body 1. Inthe FIG. 1 which shows the guarantee closure before its first opening,the pour-out connection piece or spout 2 is accommodated in the freespace 14 which is limited above and below by the two shoulders 12, 13 ofthe closure body 1, as well as laterally by its wall which standsperpendicular to the shoulders. In this position of the pour-out spout 2the film-hinge material bridge 5 seen from the outside, that is to sayfrom the left, forms a concave surface. Above the pour-out spout 2 wherethe material bridge 5 enclosing the pour-out spout 2 runs together, thepoint 6 forms a rotation axis 6 for the pour-out spout 2. As shown, thepour-out spout 2 on its lower side 7, towards the right, thus towardsthat end which is to be pivoted towards the container 20, is longer thanon the upper side 8 and tapers into a tip 9. Thus from its wall thereare formed two edges 10 which taper at an askew angle to the tip 9.These outer edges 10 act as cutting edges.

The guarantee closure is shown in FIG. 2 in a front view, as seen fromthe left side of FIG. 1. The closure cap 3 comprises a tongue 19 whichextends downwards and overlaps the closure body 1 at this location. Thetongue 19 is advantageously via a thin location 21 set off somewhat fromthe remaining material of the closure cap 3 so that it may be slightlypivoted to the outside and may be gripped with two fingers. For openingthe closure one grips the tongue 19 on the closure cap 3 and pivots upthe closure cap 3 onto the closure body 1 lying thereunder about itshinge connection 18 arranged on the rear side.

FIG. 3 shows the guarantee closure in a longitudinal section with aclosure cap 3 which has been flipped up. FIG. 3 shows the pivoting-up ofthe pour-out spout 2 and the cutting-open of the guarantee foil 4 whichis effected at the same time. Specifically with two fingers a user gripsthe front part of the pour-out spout 2 which projects out of thematerial bridge 5 and pivots this up about the rotational axis 6 in thedirection of the arrow. The pour-out spout 2 by way of pressing a thumbonto its opening and afterwards a pivoting movement of the thumb out ofits lying position, may also be pivoted up about the rotation axis 6. Asshown, at the same time the tip 9 of the lower end of the pour-out spout2 tears a hole into the guarantee foil 4, and with a further pivoting upof the pour-out spout 2 the edges 10 cut further on both sides of thecreated hole so that out of the guarantee foil 4 a strip is cut outwhich is bent back by the further pivoting pour-out spout 2. FIG. 3shows this pivoting-up movement during which the cutting-open of theguarantee foil 4 is effected, to half the path to be covered.

FIG. 4 shows the completion of this movement. Now the pour-out spout 2has reached its pour-out position and the guarantee foil 4 is adequatelycut open so that it sets free the cross section of the spout 2, and thisalso remains because the cut-open strip of the guarantee foil 4 is heldback from the lower end of the pour-out spout 2. During the pivoting upof the pour-out spout 2 the film-hinge-like material bridge 5 isdeformed and at the same time overcomes a dead center position. Onovercoming this dead center position the material bridge 5 snaps from ashape which from the outside is firstly concave under which it developeda spring tension which kept the pour-out spout 2 in the lying position,into a convex shape, under which it develops a spring tension in thedirection of the pivoting-up of the spout 2, and keeps it in the assumedpour-out position. The guarantee closure is now open and the bottle 20is ready for pouring out its contents.

In FIG. 5 this position of the guarantee closure with a flipped-upclosure cap 3 and with the pour-out spout 2 in the pour-out position andcut-open guarantee foil is shown seen from above. On the closure body 1on its front side a concavity 29 is taken out which simplifies with aclosed closure cap 3 the gripping of the tongue 19 overlapping this. Thematerial 5 which is shown from above surrounds the pour-out spout 2 thatbelongs to the film-hinge-like material bridge 5 which thus is curvedconvexly outwards and on account of its spring tension keeps the spout 2in the pour-out position 2. The upper shoulder 13 of the closure body 1forms a recess 23, within which the material bridge 5 sealingly enclosesthe pour-out spout 2 so that the inside of the bottle exclusivelycommunicates with the outside of the bottle. With an interrupted linethe inner diameter of the closure body 1 is drawn in, over which theguarantee foil extends and in the condition shown is already cut openand displaced to the side, even if not shown. On the inner side of theclosure cap 3 is a collar 22 for enclosing the opening edge of thepour-out spout 2 with the re-closed condition of the closure, so thatthis first is sealingly closed and second the position of the pour-outconnection 2 is secured.

FIG. 6 shows the guarantee closure in a longitudinal section with aclosure cap 3 which has been re-closed, with the pour-out spout 2remaining in the pour-out position after use for the first time. Thecollar 22 on the closure cap 3 encloses the opening edge of the pour-outspout 2. The film-hinge material bridge 5 remains in its shape which isconvex when viewed from the outside, and the lower end of the pour-outspout 2 presses the cut open guarantee foil 4 further to the side andthus keeps the pour-out free.

In FIG. 7 the guarantee closure is shown in an application on acardboard fluid carton or a cardboard free-flowing material carton. Inthe figure to the left is for pouring out the contents via a narrow sideof the packaging carton and in the figure to the right is for pouringout the contents via a corner of the packaging carton. Such cardboardpackagings are used for all sorts of fruit juices, lemonades, freshwater, tea and milk products, in many ccountries even wine. Furthermorealso free-flowing material contents such as sugar and salt and similarproducts are packaged in such cardboard cartons. Instead of a circularshape as shown in the FIGS. 1 to 6 the guarantee closure shown here hasin the example on the left a rectangular base shape and in the variantfor building in the corner of a cardboard carton a boat-like base shape.The closure positioned in the corner is advantageous because thecontents which indeed runs better together here, may be emptied from thecarton without any remains. Furtherbase shapes of the closure arepossible depending on the particularities and the shaping of thepackaging. The guarantee closure 1′ may be adhered onto the cardboardcarton 20′ or may be connected sealingly to the cardboard carton 20′ byway of an ultrasonic welding. In this case a plastic foil is appliedbelow the upper closure surface of the cardboard carton and the closurethen with the cardboard carton closure surface is welded to the plasticfoil applied thereunder at least at locations by way of an ultrasonicwelding.

As shown in FIG. 8 the closure cap 3′ is formed as a flat lid andoverlaps the closure body to the front, as shown to the left in thedrawing, while the closure cap hinge 25 is arranged roughly in themiddle of the closure length. The front part of the lid may be pivotedupwards about the hinge axis 25 which is drawn in with the arrow, forwhich the closure cap 3′ at its front, projecting edge 24 may begripped. Most simply one places the thumb below the edge 24 of theclosure cap 3′, as shown in the drawing, and then pulls it up. The lowerside of the upwardly pivotable closure cap there is formed a pour-outspout 2′. This on its rear side or the lower side in the pivoted upcondition is chamfered and thus tapers towards that end which onpivoting-up is pivoted towards the container 20′ into a tip 9′. Thusfrom its wall there are formed two edges 10′ which taper at an askewangle to the tip 9′. Pointing downwards as shown here on the tip 9′there may be a perforating tip 27 which may be formed by a plastic conepointing downwards with the tip, wherein the tip of the cone may taperinto a sharp, short needle, or the perforating tip is formed by alarge-surfaced plastic triangle aligned along the pour-out spout axis,with a sharp tip. The lower rear longitudinal side 7′ of the pour-outspout 2′ is formed into a sharp, wedge-shaped longitudinal edge whichmay act as a cutting edge, as will be explained. Below the closure thereextends the cardboard of the liquid or loose material carton and by thetip 27 is pressed slightly downwards. The closure is from above gluedonto the cardboard carton or connected to a plastic foil 26 appliedbelow the cardboard by way of ultrasonic welding.

FIG. 9 shows how the closure functions. Firstly with one finger, best ofall the thumb the closure lid 3′ at its edge 24 is gripped and flippedup about the hinge axis 25, by which simultaneously the pour-out spout2′ arranged on the lower side of the closure lid 3′ is pivoted by 90°into the vertical position. On the outside between the pivotablepour-out spout 2′ and the closure housing 1′ there is located a thinsealing membrane 5′ in the shape of a film-hinge material bridge whichin the initial position with a lying pour-out spout 2′ as shown in FIG.8 when viewed from the outside, and as seen from the left in thedrawing, is curved concavely. On pivoting up the closure cap 3′ and thepour-out spout 2′ formed thereon this membrane 5′ springs into a convexshape and develops in this position a force in the direction of thepivoting-up of the pour-out spout 2′. Because the pivoting axis isarranged roughly in the middle of the length of the pour-out spout 2′ onpivoting up this, its rear, specially formed part flips downwards. Atthe same time the perforating tip 27 presses on the cardboard of theliquid carton 20′ and tears a hole in this. This is extremely importantsince only proceeding from such a tear location may the thick cardboard28 be cut open further. On flipping up the pour-out spout 2′ the lowerwedge-shaped longitudinal edge of the pour-out spout 2′ presses onto thetear location and this lower edge on the spout 2′ acting as a knife cutsopen the cut-open hole even more so that the lower part of the pour-outspout 2′ finally projects into the inside of the cardboard carton 20′and this is opened. In FIG. 9 for an improved understanding a middlepivot position of the closure lid 3′ and pour-out spout 2′ is showndashed. Finally the pour-out spout 2′ reaches the vertical position inwhich the sealing membrane 5′ seen from the outside is convexly curvedand retains the pour-out spout 2′ in this position. If the pour-outspout 2′ after pouring out the desired liquid quantity is pivoted downagain, the membrane 5′ springs again into its concave shape and retainsthe spout 2′ in the lying position. So that the fluid contents may bepoured out cleanly, the edge of the pour-out spout 2′ may have a driplug 30.

1. A guarantee closure for a liquid and free-flowing material container(20, 20′) having a closure body (1) with a pour-out spout (2, 2′)arranged therein in an initial position and which is pivotable up out ofthe initial position and which with respect to the closure body (1) issealingly enclosed by a film-hinge material bridge (5,5′) which onpivoting up the pour-out spout (2, 2′) springs from a concave into aconvex shape and vice-versa and thus retains the pour-out spout (2, 2′)in end positions of a pivoting range, and an associated guarantee foil(4, 28) which in the lying position of the pour-out spout (2, 2′)extends below and along the lying position, wherein a pivoting axis onthe pour-out spout (2, 2′) is at a location so that a rear section ofthe pour-out spout (2, 2′) on pivoting-up the pour-out spout (2, 2′)pivots downwards, the guarantee closure comprising: a lower, rear end ofthe pour-out spout (2, 2′) in the lying position tapering into a tip (9,9′) and from a wall are formed two edges (10′) tapering at an askewangle to a pour-out spout axis to the tip (9′), the tip (9′) taperinginto a perforating tip (27) by forming one of a plastic cone pointingtoward the guarantee foil (28) and a large-surfaced plastic trianglealigned along the pour-out spout axis, with a sharp tip directeddownwards, the pour-out spout (2,2′) in the lying position forming on alower longitudinal side behind the film-hinge material bridge (5,5′) asharp wedge-shaped longitudinal edge, and on pivoting up the pour-outspout (2, 2′) at first the guarantee foil (28) being pierced open by theperforating tip (27) and then starting at the piercing point being cutopen by the longitudinal edge, the closure cap (3) via a film hinge (18)connected as one piece to the closure body (1) and can be flipped upwhereby the closure cap (3) in a closed position is lockable into theclosure body (1) and bears on an inner side a collar (22) which in aflipped up position of the pour-out spout (2) and closed closure cap (3)encloses an opening edge of the pour-out spout (2) so that the pour-outspout (2) in the flipped up position is sealed and secured.
 2. Aguarantee closure for a fluid and free-flowing material container (20,20′) according to claim 1, wherein the pour-out spout (2, 2′) in thelying position in the closure body (1) on a lower side (7, 7′) in adirection of an end to be pivoted towards the container (20, 20′) islonger than on an upper side (8, 8′) so that at the end tapers at theaskew angle to the axis of the pour-out spout (2, 2′) into a tip (9, 9′)and the edges (10, 10′) tapering at the askew angle to the lower end ofthe pour out spout (2, 2′) are formed as cutting edges.
 3. A guaranteeclosure for a liquid and free-flowing material container (20) accordingto claim 1, wherein the closure body (1) comprises a relief (11) forreceiving the guarantee foil (4), and above the relief (11) by twoshoulders (12,13) arranged over one another and distanced from oneanother forms a free space (14) for receiving the lying pour-out spout(2), wherein the pour-out spout (2) is enclosed by a film-hinge materialbridge (5) which in the lying position connects the two shoulders (12,13) with a surface which is concave when viewed from an outside and onthe upper side of the lying pour-out spout (2) runs together at a pointwhich defines the pivoting axis (6) of the pour-out spout (2).
 4. Aguarantee closure for a liquid and free-flowing material container (20)according to claim 3, wherein the closure cap (3) on the inner side hasthe collar (22) for receiving the upper edge of the pivoted-up pour-outspout (2) and the closure cap (3) by a snap closure is one of stuck ontothe closure body (1) and by an inner thread is screwed onto the closurebody (1) with an outer thread.
 5. A guarantee closure for a liquid andfree-flowing material container (20) according to claim 4, wherein theclosure body (1) has an inner thread (15) for screwing onto an outerthread (16) of a bottle neck (17).
 6. A guarantee closure for a liquidand free-flowing material container (20) according to claim 5, whereinthe upper shoulder (13) of the closure body (1) comprises a recess (23)within which the pour-out spout (2) is sealingly enclosed by thefilm-hinge material bridge (5).
 7. A guarantee closure for a liquid andfree-flowing material container (20) according to claim 1, wherein theclosure body (1) has an inner thread (15) for screwing onto an outerthread (16) of a bottle neck (17).
 8. A guarantee closure for a liquidand free-flowing material container (20) according to claim 1, whereinthe upper shoulder (13) of the closure body (1) comprises a recess (23)within which the pour-out spout (2) is sealingly enclosed by thefilm-hinge material bridge (5).
 9. A guarantee closure for a liquid andfree-flowing material container (20.20′) having a closure body (1) witha pour-out spout (2, 2′) arranged therein in an initial position andwhich is pivotable up out of the initial position and which with respectto the closure body (1) is sealingly enclosed by a film-hinge materialbridge (5,5°) which on pivoting up the pour-out spout (2, 2′) springsfrom a concave into a convex shape and vice-versa and thus retains thepour-out spout (2, 2′) in end positions of a pivoting range, and anassociated guarantee foil (4, 28) which in the lying position of thepour-out spout (2, 2′) extends below and along the lying position,wherein a pivoting axis on the pour-out spout (2, 2′) is at a locationso that a rear section of the pour-out spout (2, 2′) on pivoting-up thepour-out spout (2, 2′) pivots downwards, the guarantee closurecomprising: a lower, rear end of the pour-out spout (2, 2′) in the lyingposition tapering into a tip (9, 9′) and from a wall are formed twoedges (10′) tapering at an askew angle to a pour-out spout axis to thetip (9′), the tip (9′) tapering into a perforating tip (27) by formingone of a plastic cone pointing toward the guarantee foil (28) and alarge-surfaced plastic triangle aligned along the pour-out spout axis,with a sharp tip directed downwards, the pour-out spout (2,2°) in thelying position forming on a lower longitudinal side behind thefilm-hinge material bridge (5,5°) a sharp wedge-shaped longitudinaledge, and on pivoting up the pour-out spout (2, 2′) at first theguarantee foil (28) being pierced open by the perforating tip (27) andthen starting at the piercing point being cut open by the longitudinaledge, the pour-out spout (2, 2′) in the lying position in the closurebody (1) on a lower side (7, 7′) in a direction of an end to be pivotedtowards the container (20, 20′) being longer than on an upper side (8,8′) so that at the end tapers at the askew angle to the axis of thepour-out spout (2, 2′) into a tip (9, 9′) and the edges (10, 10′)tapering at the askew angle to the lower end of the pour out spout (2,2′) are formed as cutting edges.
 10. A guarantee closure for a liquidand free-flowing material container (20, 20′) having a closure body (1)with a pour-out spout (2, 2′) arranged therein in an initial positionand which is pivotable up out of the initial position and which withrespect to the closure body (1) is sealingly enclosed by a film-hingematerial bridge (5,5°) which on pivoting up the pour-out spout (2, 2′)springs from a concave into a convex shape and vice-versa and thusretains the pour-out spout (2, 2′) in end positions of a pivoting range,and an associated guarantee foil (4, 28) which in the lying position ofthe pour-out spout (2, 2′) extends below and along the lying position,wherein a pivoting axis on the pour-out spout (2, 2′) is at a locationso that a rear section of the pour-out spout (2, 2′) on pivoting-up thepour-out spout (2, 2′) pivots downwards, the guarantee closurecomprising: a lower, rear end of the pour-out spout (2, 2′) in the lyingposition tapering into a tip (9, 9′) and from a wall are formed twoedges (10′) tapering at an askew angle to a pour-out spout axis to thetip (9′), the tip (9′) tapering into a perforating tip (27) by formingone of a plastic cone pointing toward the guarantee foil (28) and alarge-surfaced plastic triangle aligned along the pour-out spout axis,with a sharp tip directed downwards, the pour-out spout (2,2°) in thelying position forming on a lower longitudinal side behind thefilm-hinge material bridge (5,5°) a sharp wedge-shaped longitudinaledge, and on pivoting up the pour-out spout (2, 2′) at first theguarantee foil (28) being pierced open by the perforating tip (27) andthen starting at the piercing point being cut open by the longitudinaledge the closure body (1) comprises a relief (11) for receiving theguarantee foil (4), and above the relief (11) by two shoulders (12,13)arranged over one another and distanced from one another forms a freespace (14) for receiving the lying pour-out spout (2), wherein thepour-out spout (2) is enclosed by a film-hinge material bridge (5) whichin the lying position connects the two shoulders (12, 13) with a surfacewhich is concave when viewed from an outside and on the upper side ofthe lying pour-out spout (2) runs together at a point which defines thepivoting axis (6) of the pour-out spout (2).
 11. A guarantee closure fora liquid and free-flowing material container (20, 20′) according toclaim 10, wherein the closure cap (3) via a film hinge (18) is connectedas one piece to the closure body (1) and can be flipped up whereby theclosure cap (3) in a closed position is lockable into the closure body(1) and bears on an inner side a collar (22) which in a flipped upposition of the pour-out spout (2) and closed closure cap (3) enclosesan opening edge of the pour-out spout (2) so that the pour-out spout (2)in the flipped up position is sealed and secured.
 12. A guaranteeclosure for a liquid and free-flowing material container (20, 20′)having a closure body (1) with a pour-out spout (2, 2′) arranged thereinin an initial position and which is pivotable up out of the initialposition and which with respect to the closure body (1) is sealinglyenclosed by a film-hinge material bridge (5,5°) which on pivoting up thepour-out spout (2, 2′) springs from a concave into a convex shape andvice-versa and thus retains the pour-out spout (2, 2′) in end positionsof a pivoting range, and an associated guarantee foil (4, 28) which inthe lying position of the pour-out spout (2, 2′) extends below and alongthe lying position, wherein a pivoting axis on the pour-out spout (2,2′) is at a location so that a rear section of the pour-out spout (2,2′) on pivoting-up the pour-out spout (2, 2′) pivots downwards, theguarantee closure comprising: a lower, rear end of the pour-out spout(2, 2′) in the lying position tapering into a tip (9, 9′) and from awall are formed two edges (10′) tapering at an askew angle to a pour-outspout axis to the tip (9′), the tip (9′) tapering into a perforating tip(27) by forming one of a plastic cone pointing toward the guarantee foil(28) and a large-surfaced plastic triangle aligned along the pour-outspout axis, with a sharp tip directed downwards, the pour-out spout(2,2°) in the lying position forming on a lower longitudinal side behindthe film-hinge material bridge (5,5°) a sharp wedge-shaped longitudinaledge, and on pivoting up the pour-out spout (2, 2′) at first theguarantee foil (28) being pierced open by the perforating tip (27) andthen starting at the piercing point being cut open by the longitudinaledge, the closure cap (3) on the inner side having a collar (22) forreceiving the upper edge of the pivoted-up pour-out spout (2) and theclosure cap (3) by a snap closure being one of stuck onto the closurebody (1) and by an inner thread being screwed onto the closure body (1)with an outer thread.